A method for preparing nanometer copper powder in a small molecule viscous medium

A technology of nano copper powder and small molecules, which is applied in the field of nano metal materials to achieve the effect of reducing migration rate, preventing foaming and preventing agglomeration

Inactive Publication Date: 2011-12-14
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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The preparation method has not

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  • A method for preparing nanometer copper powder in a small molecule viscous medium
  • A method for preparing nanometer copper powder in a small molecule viscous medium
  • A method for preparing nanometer copper powder in a small molecule viscous medium

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Embodiment 1

[0026]

[0027]

[0028] Preparation process: According to the above mass percentage, sodium lauryl sulfate, ammonium lauryl polyoxyethylene ether sulfate, coconut oil alkanolamide, lauryl dimethyl amine oxide, disodium edetate Salt, potassium tartrate, simethicone, benzotriazole and deionized water are mixed and stirred evenly to prepare a small molecule viscous medium, and copper chloride is added to stir evenly, and formaldehyde is added to stir until the reaction is complete. The mass ratio of the total amount of material to deionized water is 1:1, add deionized water to dilute to reduce the viscosity, and then obtain nano-copper powder after press filtration, deionized water washing, acetone washing and vacuum drying. recycle.

Embodiment 2

[0030]

[0031] Preparation process: According to the above mass percentage, lauryl sulfate monoethanolamine salt, sodium lauryl polyoxyethylene ether sulfate, coconut oil alkanolamide, lauryl amidopropyl betaine, sodium chloride, ethylenediaminetetra Disodium acetate, ammonium tartrate, polyoxypropyl polyoxyethyl glycerin ether, tolylbenzotriazole and deionized water are mixed and stirred evenly to prepare a small molecule viscous medium, and copper sulfate is added to stir evenly, and formaldehyde is added Stir with glucose until the reaction is complete, then add deionized water to dilute the viscosity according to the mass ratio of all the above-mentioned total materials and deionized water at a ratio of 1: 1.2, press filter, wash with deionized water, wash with acetone and The nano-copper powder is obtained by vacuum drying, and the filtrate is concentrated and recycled.

Embodiment 3

[0033]

[0034]

[0035] Preparation process: According to the above mass percentage, sodium cetyl sulfonate, sodium ammonium nonylphenol polyoxyethylene ether sulfate, triethanolamine lauryl polyoxyethylene ether sulfate, coconut oil alkanolamide, coconut oil amide Propyl betaine, lithium chloride, edetate disodium salt, sodium tartrate, polyoxypropyl polyoxyethyl glycerol ether, N-hydroxybenzotriazole and deionized water are mixed and stirred evenly to prepare Small molecule viscous medium, add copper chloride and stir evenly, add sodium hypophosphite and stir until the reaction is complete, then add deionized water to dilute according to the mass ratio of the total amount of all materials above to deionized water of 1:1.5 The viscosity is reduced, and the nano-copper powder is obtained through press filtration, deionized water washing, acetone washing and vacuum drying, and the press filtrate is concentrated and then recycled.

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PUM

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Abstract

The invention discloses a method for preparing nano copper powder in a micromolecular viscous medium. The method comprises the steps of: by taking a surface active agent, salt, a complexing agent, an antifoaming agent, an antioxidant, cupric salt, a reducing agent and deionized water as raw materials and according to the proportion of (0.001-95 percent) : (0.001-95 percent) : (0.001-80 percent): (0.001-75 percent): (0.001-70 percent): (0.001-75 percent): (0.001-70 percent): (0.001-98 percent), preparing the micromolecular viscous medium by using the surface active agent, the salt, the complexing agent, the antifoaming agent, the antioxidant and the deionized water; adding the cupric salt and uniformly mixing; adding the reducing agent and mixing; adding the deionized water to dilute so asto reduce the degree of viscosity according to a mass ratio of 1:0.5-10 of the total quantity of all materials abovementioned to the deionized water after the reaction completes; and obtaining nano copper powder through filter-pressing, deionized water washing, acetone washing and vacuum drying. According to the method disclosed by the invention, the raw materials selected in the invention are easily available, the manufacturing technique is simple and short, the production efficiency is high, the production cost and the energy compunction are low, and powder has low possibility of agglomeration and has good dispersibility, therefore the method is suitable for large-scale production and solves the problems of easy oxidation and easy agglomeration of the nano copper powder existing in the traditional chemical preparation method.

Description

technical field [0001] The invention relates to a method for preparing nano-copper powder in a viscous medium of small molecules, belonging to the field of nano-metal materials. Background technique [0002] Due to the effects of quantum size effect, surface effect, small size effect and macroscopic quantum tunneling effect, nano-metallic materials present singular properties in chemical and physical properties such as melting point, magnetism, optics, heat, electricity, and mechanics. At present, nano-metal materials have been widely used in high-tech fields such as high-density magnetic recording, wave-absorbing stealth, magnetic fluid, radiation protection, chips, microelectronics, optoelectronics, high-efficiency catalysts, sensitive components, new lasers, and superconductivity. A class of new materials with broad application prospects. Nano-copper powder is one of many nano-metal materials, and it is an important raw material for the production of industrial products ...

Claims

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Application Information

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IPC IPC(8): B22F9/24
Inventor 刘福生
Owner NANJING FORESTRY UNIV
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